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CVE-2018-5105

Date: June 11, 2018

WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file. This can result in an executable file running with local user privileges without explicit user consent. This vulnerability affects Firefox < 58.

Severity Score

Related Resources (8)

https://www.mozilla.org/security/advisories/mfsa2018-02/
https://usn.ubuntu.com/3544-1/
http://www.securityfocus.com/bid/102786
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-5105
https://bugzilla.mozilla.org/show_bug.cgi?id=1390882
https://nvd.nist.gov/vuln/detail/CVE-2018-5105
http://www.securitytracker.com/id/1040270
https://www.mend.io/vulnerability-database/CVE-2018-5105

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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